Continuing our series of stories on Muslims in America, we turn our attention to the sometimes tense relationship between law enforcement and Muslims. Readers respond with their thoughts on whether they have been the object of suspicion because of their faith.

More than three-quarters of U.S. Muslims approve of President Obama’s job performance and 64 percent say he is “friendly” toward Muslim Americans, according to a rare study of public opinion among one of the nation’s smallest but most high-profile religious groups.